Type-die.



J. S. DUNCAN.

TYPE DIE.

APPLICATION FILED JUNE 1a, 1913.

1,102,398. Patented July 7, 1914.

puren lerares ra'rnnr ortica.

JOSEPH S. DUNCAN, 0F CHICAGO, ILLINOIS, ASSIGNOR -TO ADDRESSOG-RAEPH COMPANY, 0F CHlCAGO, ILLINOIS, A CORPORATION -OF ILLINOIS.

TYPE-DIE.

Specification of Letters Patent.

Patented July 7, 1914.

Applicatonled'une 1S, 1918. -Seral No. 774,317.

ToaZZ 'whom 'it may fconcern Be it known lthat II, JosEri-r S. DUNCAN, a citizen of the United States, .resid-ing at Chicago, in the county oit' .Cook and State of Illinois, have invented certain new -and useful 'Improvements in Type-Dies, ot which `the following is a specification.-

This invention relates `in general to dies adapted for use in connection with suitable punches for producingr printing characters in `relief on sheet metal blanks or pla tesand has more particular reference to dies. of the general character disclosed i-n my prior U. S. Letters Patent No. 1,043,460 amd 1,018,461, issued December 24, 1912.

In -my companion application, Serial No. 773,430, li'ledJune 13, 1913, I have disclosed a die provided at its operating' end with a centrally disposed character-forming ele- `nient and a ledge extending laterally from sai-d element to the side ot' the die, this ledge being` adapted to overlie a previously formed printing character during the operation of -the die to prevent lthe previously formed character from becoming' distorted or displaced during the formation of the next succeeding character.

My present invention aims to produce a die having a ledge ot' maximum Width which will present a largearea and be especially efficacious in preventing distortion o1' displacement of a previously formed printing character; and with this end in view, the character :forming element in my present die, is disposed adjacent to one vertical side :tace of the die body.

Anotherlobject ot fthe invention is to produce -a die which will remove any roughness or irregularity from the 'faces of the printling characters and reduce all the printing characters Ito a uniform height with their printing,r faces disposed in -a common plane, this object beingr effected in the present rnstance by forming the face of the ledge nearer to the extremity ofthe die than `the bottom of the charactenfornling depression so that the ledge face will engage `with and depress the face ot the next preceding character at each operation.

My invention will be best `understood by reference to the following description when considered in connection with lthe accompanying;r drawings, by reference to whicl1,`it will be observed that Figure l is a tragmenl'ary side elevation ot a printing:r device showing a'punch and my novel die in co operative rela-tion therewith; Fig. 2 is a longitudinal sectional view taken substantially on 'the line Q--Q of F ig. 3; Fig. 3 is a transverse sectional view taken substantially on the line 3-43 of Fig. 2; fFig. 4 is a sectional view on the iine Alr-i of Fig. 3; Fig. 5 is an end view ot' my improved die; Fig. (S is a perspective view of the .die shown in Fig. 5; and Fig. 7 shows a slightly different 't'orm of die embodying my inven embodiment illustrated, 'by a ilat shoulder 15.

The die 11 which cooperates With the punch 10, is provided at its operating end with a channel or recess extending transversely across the end ofthe die and formingat its bottom a flalt face 16, lthe side walls of the channel .providing lips 17 and 1S which project longitudinal-ly of the die heyond the face 16. .'lhe clmracter-formingr depression .19,- complementary to the charaoterdorming elevation 14 on the punch, is formed on the face 17 between the lips 1H and 1-9. will be observed that the face lo is disposed normal to vand intersects the side y'face .21 of the tdie and Ithat the charactertorming 'depression 19 is positioned on the operatingend of the die adjacent to the side face Qi, so that the ydepression is disposed laterally with respect ito the longitudinal axis of the die. Adjacent to Athe inner edge of the charactcr-forming,r depression, the metal of the dieI -is cnt away or otherwise iopmed to provide a ledge 22, depressed relatively to the tacc l'l -and extendingr parallel therewithto the opposite side `of the die. The ytace ol" the ledge 22 is depressed relatively to the lace lll a distance slightly less than Athe depth of the chameter-formingr dcpression therein, the ledge heingrr conscquently located below the extremities ol" the lips 18 and lll, n distance slightly less than the height ofthe printingr Vtace o'l'the charm-- loi)` i s?? i 2 i.,ioa,eea

ters above the plane of the plate from which thel characters are formed. ylFhe vprinting face oi' each character is therefore depressed by the ledge an amount equal to the depth ci the character-forming depression below the ledge, during the formation of each succeeding character, thereby attening and removing any irregularities in the printing faces of the characters. rlFhe ledge extends at least from the lip 18 to the lip 19, and for convenience of manufacture, it pre-ferably extends through the lips, as best shown in Figs. 5 and 6, although, if preferred, the ledge mayterminate at the lips as shown in Fig. 7. ln order that the body of the die may not contact with adjacent lilies of printing characters during the operation of the die, the outer faces of the lips 17 and 18 are beveled, as indicated by reference characters 23 and 24 respectively; the lip 17 being preferably beveled more, than the lip 18 to provide suilicient clearance between the die and an adjacent line of printing characters, as shown in Fig.

lVhen the punch and die are brought into co '}perati\;e relation, the metal of the plate at the top and bottom of the character is maintained in its normal plane by the lips 17 and 18, the edges of which, when the punch and die are tinted together, are spaced from the, shoulder 1G of the punch, a distance suit- 'licient to retain the metal at the top and bottoni of the character in its original plane. During the formation ot the character, the metal at the lett of the character is bent upwardly from its original plane, as best shown in Fig. .2, and the metal. at the right of the character, between the previously toi-ined (,:haracter and the character being lomned, is elevated or drawn upwardly some little distance above its original position. 'the inetal, Ywhich forms the printing character itsell, is iorced upwardly into the charactor-forming depression of the die by the elevated character-forming tace 14 of the punch which is preferably slightly larger in eross-seetiomil a rea than the character-forming depression. The displacenient of the metal at the right of the character being formed has a tendency to displace ,the previously formed character from its proper position by tilting or otherwise, so that its printingface will not lie in a plane parallel with the plane of the face of the plate, such displacement being particularly noticeable when the characters are formed in close juxtaposition. To obviate this displacement of the previously formed character, the ledge 2Q, as will be observed by reference to l*1 igs. 2 and 4, is constructed and positioned to provide a gage or abi'ltinent adapted to overlie and, upon actuation ot the die, depress the face ot the previously termed character sniliciently to relieve it ot surface irregularities and reduce the face to a common printing plane. By positioning the ycharacter-forming depression adjacent to one edge of the operating end of the die, a ledge of maximum width may be formed which will i overlie approximately the entire printing face of a. previously formed character of maximum Width, thereby positively engaging and positioning` the entire printing face of the printing character. lt will be manifest, therefore, that the printing Jfaces of all the characters in a line will be disposed in a common plane so as to produce equally clear and distinct impressions.

wWhile I have shown and described the die adapted to produce the letter li/i, it will be obvious that the operating face of the die may be supplied'with any desired characterforming depression, and that as the Width of the character decreases, the width of the adjacent ledge may be correspondingly increased. ln any event, a ledge of maximum width is secured by reason of the fact that the charaeter-forming depression is posi tioned closely adjacent to one side of the die.

l claim:

l. A die for forming printing characters in a metal plate, comprising a body provided at one end with a character-forming element disposed adjacentto one side ot the body, and a ledge disposed adjacent to the @g opposite side of the body in position'to overlie a previously formed character.

2. 1^, die for forming printing characters in a. metal plate, provided at its operating end with a character-forming element positioned adjacent to one vertical side of the die, lips projecting longitudinally of the die at the topl and bottom of said character- Vforming element, and a ledge extending from the opposite vertical side oit the die toward sa id chameter-forming element.

3. It die 'for forming printing characters in a metal plate, comprising a body having at its operating end a flat face disposed adjacent to one side of the body, said tace being provided with a character-forming depression, and a ledge depressed relatively to said face and extending from said face to the opposite side of the body.

it. d die for forming printing characters in a metal plate, having parallel side walls at its operating end, a character-forming element located adjacent to one of said Walls on the operating end of the die, the walls of the die at the top and bottom of said character-forming element being extended longitudinally to provide lips, and a ledge disposedv between said character-forming ele ment and the other parallel wall of the die to overlie previously formed characters during successive operations of the die.

5. A die for forming printing characters in a metal plate, provided at its operating end with a character-forming element positioned laterally with' respect to the central axis of the die, and having a ledge extending on the opposite side of said central axis from the character-forining element.

G. A die for forminf printing characters in a metal plate, provided at its operating end with a Hat face disposed normal to the adjacentlongitudnal face of the die, said flat face being providedwith a characterforming depression, a ledge depressed relaledge extending from said face to the opposite side of the die. y 8. A die for forming printing characters in a metal plate, provided at its operating end with a character-formin depression, and a ledge disposed at one si e of said deression, said ledge being nearer the extremity of the die than the bottom of said cliaraeter-forming depression.

9. A die for forming printing characters in a metal plate having at its operating end a flat face, and a ledge parallel with said face but depressed relatively thereto, said face being provided with a character-forining depression extending into the die below the plane of said ledge.

10. A die for forlnin rinting characters in a metal late, provi e at one end with ai character forming element positioned laterally with respect to the longitudinal axis of the die, said die being formed to provide a ledge extending from the opposite side of the die toward the character forming element and positioned to overlie a previously formed printing character.

JOSEPH S. DUNCAN. Witnesses:

WM. O. BELT, FRANKLIN M. VARDEN. 

